[Scummvm-tracker] [ScummVM :: Bugs] #11711: BACKENDS: Android (Amazon Fire HD8/2020) - Touchpad mode issue ("mouse mode" not working, stuck in "direct mode")

[ScummVM :: Bugs]

#11711: BACKENDS: Android (Amazon Fire HD8/2020) - Touchpad mode issue ("mouse
mode" not working, stuck in "direct mode")
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Reporter:  Expello                         |       Owner:  (none)
    Type:  defect                          |      Status:  new
Priority:  normal                          |   Component:  Port: Android
 Version:                                  |  Resolution:
Keywords:  amazon fire hd 8 touchpad mode  |        Game:
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Comment (by jacobhyman):

 It looks like the check to see if the event came from a stylus
 [[https://github.com/scummvm/scummvm/blob/master/backends/platform/android/org/scummvm/scummvm/MouseHelper.java#L114|here]]
 has a problem.  According to the Android
 [[https://developer.android.com/reference/android/view/InputDevice#SOURCE_STYLUS|InputDevice
 documentation]], SOURCE_STYLUS "merely indicates that an input device is
 capable of obtaining input from a stylus."  So what is happening is that
 if the device reports it is capable of using a stylus, all touch input is
 being treated as mouse input.

 It appears the fix to check for stylus input is to instead check the tool
 type returned by MotionEvent#getToolType(int). I wrote a small test app
 and confirmed that for touch events the Fire HD8 (2020) tablet has the
 InputDevice flag for SOURCE_STYLUS always set.  I also confirmed that
 checking the ToolType of a touch screen event returned TOOL_TYPE_FINGER
 and not TOOL_TYPE_STYLUS.  I don't think this is specific to Fire tablets;
 I was able to reproduce it on an emulated device, but I don't have any
 other real tablets.
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Ticket URL: <https://bugs.scummvm.org/ticket/11711#comment:5>
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